Roof collar construction



July 23, 1963 R. A. DIBLEY 3,098,663

ROOF COLLAR CONSTRUCTION Filed April 23, 1962 3 Sheets-Sheet 1 IN VE NTOR RA swa/vo A D/BLE s 4 TTORNEVS July 23, 1963 R. A. DIBLEY ROOFCOLLAR CONSTRUCTION Filed April 25, 1962 5 Sheets-Sheet 2 INVENTOR. R mvAZ D/BLEV July R. AODIBLEY ROOF COLLAR CONSTRUCTION Filed April 23, 1962s Sheets-Sheet :s

IN V EN TOR.

Rmwowo A. D/BLEV BY 3,098,663 RUOF CGLLAR CGNSTRUQTIQN Raymond A.Dihley, 13435 Loretta, Detroit, Mich. Filed Apr. 23, 1962, Ser. No.192,023 14 Claims. (Cl. 285-43) The present invention relates to new anduseful improvements in roof collars and more particularly to auniversal, resilient roof collar construction which is adapted to form awatershed on any vent pipe, flue or like cylindrical projection thatextends through a roof, irrespective of the roof pitch.

The instant application is a continuation in part of my roof collarapplication, Serial No. 744,457, filed June 25, 1958, now abandoned, andSerial Number 540,459, filed October 14 ,1955, now abandoned.

During the construction of new residential and commercial buildings andprior to the time the roofing is laid, the rough plumbing is installed.Various vent pipes, flues, etc., which comprise a portion of the roughplumbing are so positioned as to extend through openings cut in theroof. In the prior art, flanged roof collar assemblies were dropped overthe end of each respective vent pipe, so as to cover the opening in theroof. The base flanges of each of the collars were supported by the roofstructure proper.

The collars ordinarily used, comprised an annular lead sleeve of largerdiameter that that of the vent pipe. Although the roof collar waspositioned on the roof, the caulking of the joint was always delayeduntil after the roofing was completed. The reason for the delay was thatthe base flange of the roof collar assembly had to be interleaved withshingles. To complete this operation, the roof collar had to be free tomove. Should the joint between the vent stack and the lead sleeve havebeen completed, it would be broken as a result of movement during theroofing operation.

It has been conventional practice for the plumber to place the roofcollar in position and then return to the building site after theroofing had been completed, to caulk the roof collar joints. This, ofcourse is an extremely costly proposition, since it necessitates theplumbers returning to the building, for a job which probably takes lesstime to complete, than the time required to travel to the site. Infrequent instances, the plumber forgets to make the second trip.Consequently, the build ing resident notices dampness in the plaster, aswell as blistered paint. When this occurs, the resident is usually quitedisturbed and he calls the builder, to state in no uncertain terms thathis roof is leaking and that is requires immediate attention.

The builder then calls the roofer, who must stop the job on which he isworking and return to the previous building site. After a completeexamination of the roof, the roofer finds that the roof collar has notbeen properly caulked. This infuriates the roofer, because of his lossof his time, due to a complaint for which he was not responsible. Thebuilder having been notified of the situation, then calls the plumber.

The plumber then goes to the site, repairs or caulks the vent pipe seal(lead) and returns to his former job. Each person involved loses aconsiderable amount of time and money, and more often than not is verydisturbed over the whole situation. This is not only a costly and timeconsuming operation, but a nuisance which antagonizes all personsinvolved.

It must also be noted, with this type construction, the roof collarjoint when cauked, becomes a rigid part of the building structure, andany movement of the roof due to settlement of the building, wind, rainor snow load, etc, with respect to the vent pipe causes a breaking3,99%,h63 Patented July 23, 1963 or cracking of the caulked seal whichresults in a leak.

Vibration caused by heavy vehicles on nearby highways, is also acontributing factor to roof collar failure, since it is this vibrationthat causes a settling of the building, which inturncauses a movement ofthe root with respect to the vent pipe, thus cracking the seal.

From the foregoing, it is apparent that root collars which require arigid connection between the vent pipe and roof collar, will not form apermanent seal, whereas a resilient roof collar which is free to float,will ma ntain a watertight seal, even though the roof shifts orotherwise sags.

It is therefore a principal object of the present inven tion to providean improved roof collar construction which is simple and durable andcapable of being pro duced in large quantities by modern mass productionmethods, at a cost which is equal to, or less than the cost of existingdevices.

Another object of this invention is the provision of a resilient roofcollar construction, which can be readily installed in a single serviceoperation, without any danger or possibly of breaking the watertightjoint as a result of movement during the roofing operation.

Another object is the provision of a resilient roof collar constructionwhich will withstand exposure to the suns rays, ozone, etc., andresistant to damage from snow, hail, wind, sand and rain.

Still another object of the present invention is the provision of aresilient roof collar construction which is readily adjusted to conformto any roof pitch, as well as a wide range of vent stack sizes, whileremaining flexible and operational in extreme weather conditions, bothhot and cold.

Another object of the invention is the provision of a resilient roofcollar construction, which when applied forms a watertight seal underall conditions, irrespective of the roof movement caused 'by wind, rainand snow.

Another object of the present invention is the provision of a resilientroof collar which will not be rendered ineifective so as to leak as aresult of vibration caused by heaw vehicles or settling of the buildingon which the roof collar is mounted.

Still another object of the invention is the provision of a resilientroof collar construction which is installed by non-skilled help, andwhich will provide a watershed on a vent pipe, flue, etc, withoutnecessity of constant maintenance, repair or replacement for a longperiod of time, while retaining substantially the :original and initialelastic qualities.

Another object of the invention is the provision of a durable andresilient roof collar which can be installed by non-skilled labor inless than 60 seconds, that will provide a joint which will not bedamaged by settling of the building, wind, rain, snow or vibration, asopposed to the time consuming, inefiicient, hammered lead joint sealingmethod which [has been used in the past.

The fore-going and related objects can be accomplished by the provisionof a resilient roof collar construction for use with a cylindrical ventpipe, wherein a substantially fiat, rectangular body portion has an embossure struck therefrom; an annular opening located in said embossure,with a clamping pocket formed on the inside diameter of said embossureopening, said clamping pocket terminating in an upwardly form-edgenerally S-shaped lip depressed below the upper plane surface of saidembossure; the plane surface thereof terminating in angular relationshipto the plane of said flat flange member; an annular, generally flat\disc of thin resilient material; said disc member having an enlargedportion on the periphery thereof; a downwandlydepending flange portionintermediate the peripheral edge portion and integral therewith; anenlanged bulb section on the end of said downaosaess 3 wardly dependingflange; said bulb portion secured within said S-shaped pocket; a roundopening centrally located in said resilient disc; said resilient discdisplaced over a cylindrical vent pipe of greater diameter than saidopening [to tform a watertight joint therebetween.

Other objects of this invention will appear in the following descriptionand appended claims, reference being had to the accompanying drawings,forming a part of this specification, wherein like reference charactersdesignate corresponding parts in the several views.

In the drawings:

FIGURE 1 represents a cross-sectional view of a roof collar constructionembodying the present invention, installed on a vent pipe.

FIGURE 2 is a reduced size elevational view of the roof collar assemblyshown in FIGURE 1.

FIGURE 3 is a cross-sectional view through the roof collar resilientdisc illustrated in FIGURE 1 in the unmounted condition.

FIGURE 4 is a plan view view of a modified form of the presentinvention.

FIGURE 5 is a cross-sectional view through the modified form of theinvention shown in FIGURE 4 mounted on a vent pipe.

FIGURE 6 is a fragmentary enlarged section of the bulb pocket of theflange body before assembly.

[FIGURE 7 is a plan view of another modified resilient disc structure.

FIGURE 8 is a cross-section taken generally through the center of thedisc shown in FIGURE 7.

FIGURE 9 illustrates the configuration of the central opening throughthe resilient disc shown in FIGURE 8.

FIGURES 10 and 11 illustrate two additional modified configurations ofthe central opening through the resilient disc shown in FIGURE 8.

FIGURE 12 discloses another modified form of the central opening in theresilient disc, wherein the central portion thereof is in the form of asleeve, with a serpentine shape on the inner diameter thereof.

Before explaining the present invention in detail, it is to beunderstood that the invention is not limited in its application to thedetails of construction and arrangement of parts illustrated in theaccompanying drawings, since the invention is capable of many otherembodiments and of being practiced or carried out in various ways. Also,it is to be understood that the phraseology or terminology employedherein is for the purpose of description and not limitation.

Referring to the drawings, FIGURE 1 represents a complete roof collarassembly 10, positioned on a cylindrical vent pipe extension 12. Thevent pipe 12 is made from cast iron or other suitable material which isusually coated with a bituminous material 14, so as to prevent rust andcorrosion on the outer surface thereof.

The roof collar assembly 10 comprises a generally flat, rectangular bodyportion 16, which has a conical embossure 18 struck from the centralarea 19 thereof. It will be noted that the rectangular body portion 16shown in FIGURES 1 and 2 is t roken away to conserve space, [however theshape of the body is rectangular in configuration.

A generally round opening 20 is located in the conical embossure 18. Theedges thereof, or inside diameter 21 of opening 20 has formed thereon, adownwardly depending flange portion 22, which terminates in a generallyS-shaped lip .23 in the form of a pocket. The deformed portion 36- opensupwardly and is located generally below the upper plane surface 24 ofthe conical embossure 18. The upper plane surface 24- ot the conicalembossure 18 is positioned in angular relationship to the plane surface26 of the rectangular body portion 16. The S-shaped lip 23 protects theinner surface of a downwardly depending flange 31 from damage or tearingduring assembly of the flange, as well as holding the disc 28 in apredetermined position.

The annular disc 28 is made from a resilient material such as rubber,neoprene, hypalon or other synthetic material plastic. The resilientdisc member 28 is generally flat and has a thickened peripheral portion29. The thickened peripheral portion 29 is generally semi-circular inshape and terminates in a feathered edge lip 30, the underside 35 ofwhich engages the outside surface 33 of the conical embossure 18.

A downwardly depending flange portion 31 extends at generally rightangles to the undersurface 39 of the resilient disc 28 and immediatelyadjacent to the feathered edge portion 30. The lower section 32 of theflange 31 has an enlarged bulb section 34 thereon, which is adapted tobe held in the pocket 36 located in opening 20.

The resilient disc 28 has a central opening 38 therein which is of lessdiameter than the vent pipe 12. The resilient disc 28 of course isresiliently yieldable to slide over the outside diameter of the ventpipe and firmly engage same.

After the bulb section 3 is crimped into the pocket 36 and the completeassembly 10 is formed, the resilient disc portion 28 thereof ispositioned over the vent stack 12. The underside 39 thereof engages theoutside of the vent pipe to form a long thin watertight joint 37. Theplane surface of engagement of the disc 28 with respect to the vent pipeis angular as is the discs relation to the roof proper. The flat bodyportion 16 of the roof collar is in engagement with the roof (not shown)and interleaved with shingles, thereby forming a watertight connectiontherewith. Application of the roof collar assembly 10 over the vent pipe12 prior to the application of shingles will not cause a leak in thejoint for-med thereby, as would be the case if the lead joint werecompleted when the roof collar was initially installed.

The reduced size drawing illustrated in FIGURE 2 shows the long thinjoint 37 between the vent stack 12 and the resilient disc 23. Theenlarged edge portion 29 is shown in engagement with the outsidediameter of the conical embossure 18, which forms a water-tight joint 49therebetween.

FIGURE 3 of the drawings illustrates a cross-sectional view through anunmounted resilient disc 28. As previously stated, the resilient disc 23has an enlarged peripheral portion 29 which terminates in a featherededge 30. Integral therewith and extending downwardly at substantiallyright angles to the underside 39 of the disc 28 is a bulb 34 on the endof a flange 31. The bulb member 34 goes around the inner circumferenceof the flange 31 and is received in the pocket 36 of the conicalembossure 18. When the bulb 34 is locked into the pocket 36, theassembly 10 is ready for installation.

When the roof collar 10 is installed, it is first positioned over theend of a vent pipe. The opening 38 in the central portion thereof iscaused to be stretched over the pipe and down the pipe until .the flangebody 16 engages the roof proper. A watertight joint has now been formedtherebetween, irrespective of the roof pitch. The joint fgrmed thereby,in this instance is generally elliptical in s ape.

FIGURE 4 of the drawings shows a simple modified form of the presentinvention, wherein the complete structure is made from a thin sheet ofresilient material 52. The complete assembly Si is of rectangular shapeand has a round opening 58 therein which is of less diameter than theoutside diameter of the vent pipe 62 on which the collar is adapted tobe positioned. The modified roof collar 50 is installed in the samemanner as the first device, however, only a minimum amount f tooling isrequired to produce this simplified model.

FIGURE 6 of the drawings shows an enlarged crosssectional view of thepocket 36, formed in the opening 20 of the conical embossure 18, beforefinal forming. It will be appreciated that the S-shaped lip 23 providesa protective surface for engagement with the bulb 34 and eliminates anypossibility of damage to the flange 31, when secured to the body 16.

FIGURES 7 and 8 of the drawings show a modified form of the presentinvention, having characteristics which cannot be obtained in thepreviously described structure. While the seal between the vent pipe andresilient disc has been satisfactory, it was felt that an improvementcould be made. The periphery of the resilient disc 128 is generally thesame as previously described. The thickened peripheral portion 129thereof is of generally semicircular cross-section and terminates atedge 130. The underside 135 of the disc 128 engages the upper surface ofthe conical embossure (not shown). As in the first instance, andextending at generally right angles to the flat underside 139 of theresilient disc 128 is another flange 131. The lower section 132 thereofhas a bulb portion 134 thereon, which is adapted to be positioned inpro-determined relationship within the pocket of the flange body (notshown). It is now apparent that the outer portion of the resilient disc128 is substantially the same as the configuration of the previouslydescribed structure.

However, when we observe the central opening 138 of the disc 128, wenote a change. The circumference 137 of the disc has a feathered edge,while being turned down wardly. It will also be noted that theundersurface 13% of the resilient flange 128 has integral therewith, awedge shaped section 14-1 depending downwardly therefrom. The wedgeshaped section is described about the circumference of the opening 138in the form of a serpentine 142 (FIGURE 7). Therefore, when theresilient disc 128 is caused to be installed on .a vent pipe, .a doubleseal joint is formed.

The feathered edge 137 forms a seal on the upper edge thereof of thevent pipe, while the wedge shaped portion 140 is caused to engage thebody of the pipe in much the same manner already described. However,because of the fact that the body of the resilient disc 128 is caused tobe stretched a greater amount than the wedge portion 141, due to itsgreater length about the same circumference, the wedge shaped portionremains much softer than the body of the disc. This permits the radialend 143 of the wedge shaped portion to better engage the irregularitiesof the surface of the vent pipe to form the second seal thereabout.

The partial view shown in FIGURE 9 illustrates sub stantially the truecross-section of the edge of the central opening, enlarged for clarity.It will be noted that the modification shown in FIGURES 79 that theupper surface 144 of the resilient disc 12?; is generally flat.

The modified form of the central opening 138 as shown in FIGURE isgenerally the same as that shown in FIGURE 9, however, the upper surface144A of the disc body has a thickened portion 145 disposed generallyabove the serpentine configuration 142. Therefore, as the resilient disc128 is caused to engage a vent pipe (not shown) a greater force will beexerted on the body of the vent pipe and the softer portion 142 of thewedge shaped serpentine 141 will more firmly engage the irregularsurface of the vent pipe.

Another modified form of the present invention is shown in FIGURE 11 ofthe drawings. This modification is very similar to that shown in FIGURE10, except that an enlarged section 148 is provided on the lower surface147 of the opening 138, thereby eliminating the thin feathered ledge.With this construction, the enlarged sec tion 148 will engage the ventpipe, while the thin section 149 immediately therebehind which is ofless strength will permit rolling of the joint, thereby in effectforming an angular relationship between surface 147 and the vent pipe.

The last modified form of the invention is shown in FIGURE 12. In thisconstruction, the central portion 150 of the disc 128 is formed in theshape of a cylinder 152. The cylinder 152 has an enlarged bulb on theend thereof identified by the numeral '154, with a section 156 ofreduced dimension immediately therebehind. The serpentine configuration158 is formed on the inside diameter thereof, while the outer surfacethereof is enlarged as shown at 159. This structure operates in the samemanner as does the previously described structures, however, a longerjoint seal is obtained thereby.

Having thus descibed my invention, I claim:

1. In a roof collar construction for use with a vent pipe which extendsangularly through the roof of a building, the combination of, asubstantially flat, rectangular body member; an upwardly extendingconical embossure struck from the central area of said flat body member;an opening in said conical embossnre; a downwardly depending flangeportion formed on the inside diameter of said opening terminating in anupwardly formed, generally Sishaped lip, below the upper plane surfaceof said conical embossure, to form a pocket, the upper plane surfacethereof terminating in angular relationship to the plane of said flatbody member; an annular flat disc of thin resilient material; adownwardly depending flange portion integral with said disc andintermediate the inner and outer boundaries of said disc; an enlargedend on said portion, said end received and locked in said pocket; anopening in the central area of said thin disc, said opening having atapered edge portion which is resiliently yieldable and of somewhatlesser diameter than the vent pipe; distortion of said opening duringinstallation causing said tapered edge portion of said thin disc toelliptically engage the vent pipe to form a watershedding jointtherebetween, the periphery of said disc extending downwardly intosealing engagement with the external surface of said conical embossure,while the body of said flat flange engages the roof proper.

2. In a roof collar construction for use with a vent pipe which extendsangularly through the roof of a building, the combination of, asubstantially flat, rectangular body member; an upwardly extendingconical embossure struck from the central area of said flat body member;a round opening in said embossure; a downwardly depending flange portionformed on the inside diameter of said round opening and terminating inan upwardly formed generally S-shaped lip located on the upper planesurface of said conical embossure, so as to form a pocket; the upperplane surface of said embossure terminating in angular relationship tothe plane of said flat body member; an annular disc of resilientmaterial; an opening in the central area of said annular disc, saidopening of less diameter than that of the vent pipe; 21 downwardlydepending flange portion iutegral with said resilient disc intermediatethe inner and outer boundaries thereof; an enlarged bulb portionintegral with said downwardly depending flange portion, said bulbreceived and locked in said pocket; a wedge shaped member integral withthe underside of said resilient disc formed into a serpentineconfiguration and spaced from the inner diameter of said disc; elasticdistortion of the central opening in said resilient disc duringinstallation 'of said assembly forming a first watershedding jointbetween the resilient disc and the vent pipe, and a second seal betweenthe vent pipe and the serpentine conguration on the underside of saiddisc, the periphery of said disc extending downward into sealingengagement with the external surface of said conical embossure, whilethe body of said flat flange engages the roof proper.

3. A device as in claim 2, wherein the circumference of the centralopening of the resilient disc has a feathered edge thereon.

4. A device as in claim 2, wherein the circumference of the centralopening of the resilient disc has a feathered edge thereon which isturned downwardly and terminates below the lower edge of the wedgeshaped section, prior to installation on a vent pipe.

5. A device as in claim 2, wherein the circumference of the centralopening has an enlarged portion thereon.

6. A device as in claim 2, wherein the central opening in the disc iscylindrical in configuration and extends upwardly therefrom.

7. A device as in claim 3, wherein a thickened portion is providedadjacent the serpentine configuration to better engage the wedgeshapedportion with the irregularities of the surface of the vent pipe.

8. A device as in claim 2, wherein the serpentineconfiguration isuniformly spaced from the edge of the central opening in said resilientdisc.

9. In a roof collar construction for use with a vent pipe which extendsangularly through the roof of a building, the combination of, asubstantially flat, rectangular body member; an upwardly extendingconical embossure struck from the central areas thereof; an opening insaid embossure; a downwardly depending flange portion formed on theinside diameter of said opening and terminating in an upwardly formedgenerally S-s'haped lip on the upper plane surface of said conicalembossure, so as to form a pocket; the upper plane surface of saidembossure terminating in angular relationship to the plane of said flatbody member; an annular disc of resilient material; a cylindrical sleeveportion extending upwardly from the central area of said disc; a wedgeshaped portion integral with said cylindrical sleeve and on the insidediameter thereof; said Wedge shiaped portion defining a serpentineconfiguration of uniform dimension and spaced from the end of saidcylinder; the inside diameter of the cylindrical portion of lessdimension than that of the vent pipe; a downwardly depending flangeintegral with the peripheral portion of said disc and intermediate theinner and outer boundaries thereof; an enlarged bulb portion integralwith said downwardly depending flange and received and locked in saidpocket; distortion of said cylindrical sleeve'during installationforming a double Watershedding joint between the vent pipe and sleeve,while the periphery of said disc extends downward into sealingengagement with the external surface of said conical embossure and theflat flange of the body engages the roof proper.

10. A device as in claim 9, wherein the upper edge of the cylindricalsleeve portion has a feathered edge.

11. A device as in claim 9, wherein the upper edge of the cylindricalsleeve portion has an enlarged portion thereon.

12. A device as in claim 9, wherein the upper edge of the cylindricalsleeve portion is of less dimension than the inside diameter of thesleeve proper.

13. A device as in claim 9, wherein the cylindrical sleeve portion has athickened section adjacent to the serpentine configuration on the insidediameter thereof.

14. In a roof collar construction for use with a vent pipe which extendsangularly through the roof of a building, the combination of, asubstantially flat, rectangular body member; an opening in the centralarea of said substantially fiat body member; a downwardly dependingflange portion formed on the inside edge of said opening and terminatingin an upwardly formed, generally S-shaped lip, to form a pocket; anannular flat disc of thin resilient material; a downwardly dependingflange portion integral with said disc and located intermediate theinner and outer boundaries thereof; an enlarged end on said flangeportion, said enlarged end received and locked in said pocket; anopening in the central area of said thin disc of somewhat lesserdimension than the outside diameter of the vent pipe; distortion of saidopening during installation of said assembly on a vent pipe causing thecentral portion of said resilient disc to elliptically engage the ventpipe, thereby forming a watershedding joint therebetween, the outerperiphery of said disc being in sealing engagement with the externalupper surface of said substantially flat body member, while theunderside of said flat body member engages the roof proper.

References Cited in the file of this patent UNITED STATES PATENTS580,515 Weeden Apr. 13, 1897 690,350 Bolger Dec. 31, 1901 1,258,884 FifeMar. 2, 1918 1,287,235 Cole Dec. 10, 1918 1,819,007 Smith Aug. 18, 19311,844,870 Helling Feb. 9, 1932 2,309,786 Porter Feb. 2, 1943 2,413,377Putnam Dec. 31, 1946 2,510,926 Goldstein June 6, 1950 2,797,955 Wil-fertJuly 2, 1957 FOREIGN PATENTS 511,895 Belgium June 30, 1952

1. IN A ROOF COLLAR CONSTRUCTION FOR USE WITH A VENT PIPE WHICHEXTENDING ANGULARLY THROUGH THE ROOF OF A BUILDING, THE COMBINATION OF,A SUBSTANTIALLY FLAT, RECTANGULAR BODY MEMBER; AN UPWARDLY EXTENDINGCONICLA EMBOSSURE STRUCK FROM THE CENTRAL AREA OF SAID FLAT BODY MEMBER;AN OPENING IN SAID CONICAL EMBOSSURE; A DOWNWARDLY DEPENDING FLANGEPORTION FORMED ON THE INSIDE DIAMETER OF SAID OPENING TERMINATING IN ANUPWARDLY FORMED, GENERALLY S-SHAPED LIP, BELOW THE UPPER PLANE SURFACEOF SAID CONICAL EMBOSSURE, TO FORM A POCKET, THE UPPER PLANE SURFACETHEREOF TERMINATING IN ANGULAR RELATIONSHIP TO THE PLANE OF SAID FLATBODY MEMBER; AN ANNULAR FLAT DISC OF THIN RESILIENT MATERIAL; ADOWNWARDLY DEPENDING FLANGE PORTION INTEGRAL WITH SAID DISC ANDINTERMEDIATE THE INNER AND OUTER BOUNDARIES OF SAID DISC; AN ENLARGEDEND ON SAID PORTION, SAID END RECEIVED AND LOCKED IN SAID POCKET; ANOPENING IN THE CENTRAL AREA OF SAID THIN DISC, SAID OPENING HAVING A